Merge branch 'gallium-0.1' into gallium-0.2

A first attempt at moving gallium onto a branch directly off master...

It will be interesting to see how much work this takes to get running.

Have resolved the conflicts semi-arbitarily, not compiled or tested.

Conflicts:

	.gitignore
	Makefile
	configs/config.mgw
	configs/darwin
	configs/darwin-x86ppc
	configs/default
	configs/freebsd-dri
	configs/linux-dri
	configs/linux-dri-xcb
	configs/linux-fbdev
	configs/linux-static
	configs/linux-x86-64-static
	configs/linux-x86-static
	doxygen/Makefile
	include/GL/gl.h
	progs/demos/Makefile
	progs/demos/descrip.mms
	progs/demos/texenv.c
	progs/egl/.gitignore
	progs/egl/Makefile
	progs/glsl/.gitignore
	progs/glsl/Makefile
	progs/glsl/convolutions.c
	progs/samples/Makefile.mgw
	progs/tests/.gitignore
	progs/trivial/.gitignore
	progs/trivial/point-param.c
	progs/trivial/tri.c
	progs/xdemos/.gitignore
	progs/xdemos/glthreads.c
	src/egl/drivers/demo/Makefile
	src/egl/drivers/dri/Makefile
	src/egl/main/Makefile
	src/glu/Makefile
	src/glu/sgi/Makefile
	src/glu/sgi/Makefile.mgw
	src/glut/glx/Makefile.mgw
	src/glut/os2/WarpWin.cpp
	src/glut/os2/glut_cindex.cpp
	src/glut/os2/glut_gamemode.cpp
	src/glut/os2/glut_win.cpp
	src/glut/os2/glut_winmisc.cpp
	src/glut/os2/os2_glx.cpp
	src/glut/os2/os2_menu.cpp
	src/glut/os2/os2_winproc.cpp
	src/glw/Makefile
	src/glx/x11/dri_glx.c
	src/glx/x11/glxext.c
	src/mesa/Makefile
	src/mesa/Makefile.mgw
	src/mesa/descrip.mms
	src/mesa/drivers/beos/Makefile
	src/mesa/drivers/common/descrip.mms
	src/mesa/drivers/common/driverfuncs.c
	src/mesa/drivers/directfb/Makefile
	src/mesa/drivers/dri/Makefile.template
	src/mesa/drivers/dri/common/dri_bufmgr.c
	src/mesa/drivers/dri/common/dri_bufmgr.h
	src/mesa/drivers/dri/common/dri_util.c
	src/mesa/drivers/dri/common/extension_helper.h
	src/mesa/drivers/dri/common/mmio.h
	src/mesa/drivers/dri/common/utils.c
	src/mesa/drivers/dri/common/utils.h
	src/mesa/drivers/dri/glcore/Makefile
	src/mesa/drivers/dri/i810/i810screen.c
	src/mesa/drivers/dri/i915/intel_ioctl.c
	src/mesa/drivers/dri/i915/intel_ioctl.h
	src/mesa/drivers/dri/i915/intel_screen.c
	src/mesa/drivers/dri/i915/server/i830_common.h
	src/mesa/drivers/dri/i915/server/i830_dri.h
	src/mesa/drivers/dri/i965/intel_screen.c
	src/mesa/drivers/dri/i965/server/i830_common.h
	src/mesa/drivers/dri/i965/server/i830_dri.h
	src/mesa/drivers/dri/mach64/mach64_screen.c
	src/mesa/drivers/dri/nouveau/nouveau_context.h
	src/mesa/drivers/dri/nouveau/nouveau_fifo.c
	src/mesa/drivers/dri/nouveau/nouveau_fifo.h
	src/mesa/drivers/dri/nouveau/nouveau_screen.c
	src/mesa/drivers/dri/nouveau/nouveau_screen.h
	src/mesa/drivers/dri/r128/r128_tex.h
	src/mesa/drivers/dri/savage/savageioctl.h
	src/mesa/drivers/fbdev/Makefile
	src/mesa/drivers/osmesa/Makefile
	src/mesa/drivers/osmesa/descrip.mms
	src/mesa/drivers/x11/Makefile
	src/mesa/drivers/x11/descrip.mms
	src/mesa/drivers/x11/xm_dd.c
	src/mesa/glapi/glapi.c
	src/mesa/glapi/glthread.c
	src/mesa/main/api_validate.c
	src/mesa/main/attrib.c
	src/mesa/main/bufferobj.c
	src/mesa/main/bufferobj.h
	src/mesa/main/buffers.c
	src/mesa/main/config.h
	src/mesa/main/context.c
	src/mesa/main/descrip.mms
	src/mesa/main/drawpix.c
	src/mesa/main/enums.c
	src/mesa/main/fbobject.c
	src/mesa/main/glheader.h
	src/mesa/main/imports.c
	src/mesa/main/mipmap.c
	src/mesa/main/mm.c
	src/mesa/main/mm.h
	src/mesa/main/mtypes.h
	src/mesa/main/points.c
	src/mesa/main/sources
	src/mesa/main/state.c
	src/mesa/main/texcompress_fxt1.c
	src/mesa/main/texenvprogram.c
	src/mesa/main/texobj.c
	src/mesa/main/texstate.c
	src/mesa/main/texstore.c
	src/mesa/math/descrip.mms
	src/mesa/shader/arbprogram.c
	src/mesa/shader/descrip.mms
	src/mesa/shader/prog_execute.c
	src/mesa/shader/prog_statevars.c
	src/mesa/shader/prog_statevars.h
	src/mesa/shader/prog_uniform.c
	src/mesa/shader/program.c
	src/mesa/shader/program.h
	src/mesa/shader/shader_api.c
	src/mesa/shader/slang/descrip.mms
	src/mesa/shader/slang/library/slang_vertex_builtin_gc.h
	src/mesa/sources
	src/mesa/swrast/descrip.mms
	src/mesa/swrast/s_drawpix.c
	src/mesa/swrast/s_fragprog.c
	src/mesa/swrast/s_readpix.c
	src/mesa/swrast/s_span.c
	src/mesa/swrast_setup/descrip.mms
	src/mesa/tnl/descrip.mms
	src/mesa/tnl/t_context.h
	src/mesa/tnl/t_vp_build.c
	src/mesa/tnl/tnl.h
	src/mesa/vbo/descrip.mms
	src/mesa/vbo/vbo_context.c
	src/mesa/vbo/vbo_exec_array.c
	src/mesa/x86-64/xform4.S
	src/mesa/x86/rtasm/x86sse.c
	src/mesa/x86/rtasm/x86sse.h
	windows/VC6/progs/glut/glut.dsp
	windows/VC7/mesa/gdi/gdi.vcproj
	windows/VC7/mesa/glu/glu.vcproj
	windows/VC7/mesa/mesa.sln
	windows/VC7/mesa/mesa/mesa.vcproj
	windows/VC7/mesa/osmesa/osmesa.vcproj
	windows/VC7/progs/glut/glut.vcproj
	windows/VC8/mesa/gdi/gdi.vcproj
	windows/VC8/mesa/glu/glu.vcproj
	windows/VC8/mesa/mesa.sln
	windows/VC8/mesa/mesa/mesa.vcproj
	windows/VC8/progs/glut/glut.vcproj

1 files changed, 193 insertions, 0 deletions

diff --git a/src/mesa/shader/prog_cache.c b/src/mesa/shader/prog_cache.c
new file mode 100644
index 00000000000..36a25377c55
--- /dev/null
+++ b/src/mesa/shader/prog_cache.c
@@ -0,0 +1,193 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+
+#include "main/glheader.h"
+#include "main/mtypes.h"
+#include "main/imports.h"
+#include "shader/prog_cache.h"
+#include "shader/program.h"
+
+
+struct cache_item
+{
+   GLuint hash;
+   void *key;
+   struct gl_program *program;
+   struct cache_item *next;
+};
+
+struct gl_program_cache
+{
+   struct cache_item **items;
+   GLuint size, n_items;
+};
+
+
+
+/**
+ * Compute hash index from state key.
+ */
+static GLuint
+hash_key(const void *key, GLuint key_size)
+{
+   const GLuint *ikey = (const GLuint *) key;
+   GLuint hash = 0, i;
+
+   assert(key_size >= 4);
+
+   /* Make a slightly better attempt at a hash function:
+    */
+   for (i = 0; i < key_size / sizeof(*ikey); i++)
+   {
+      hash += ikey[i];
+      hash += (hash << 10);
+      hash ^= (hash >> 6);
+   }
+
+   return hash;
+}
+
+
+/**
+ * Rebuild/expand the hash table to accomodate more entries
+ */
+static void
+rehash(struct gl_program_cache *cache)
+{
+   struct cache_item **items;
+   struct cache_item *c, *next;
+   GLuint size, i;
+
+   size = cache->size * 3;
+   items = (struct cache_item**) _mesa_malloc(size * sizeof(*items));
+   _mesa_memset(items, 0, size * sizeof(*items));
+
+   for (i = 0; i < cache->size; i++)
+      for (c = cache->items[i]; c; c = next) {
+	 next = c->next;
+	 c->next = items[c->hash % size];
+	 items[c->hash % size] = c;
+      }
+
+   _mesa_free(cache->items);
+   cache->items = items;
+   cache->size = size;
+}
+
+
+static void
+clear_cache(GLcontext *ctx, struct gl_program_cache *cache)
+{
+   struct cache_item *c, *next;
+   GLuint i;
+
+   for (i = 0; i < cache->size; i++) {
+      for (c = cache->items[i]; c; c = next) {
+	 next = c->next;
+	 _mesa_free(c->key);
+         _mesa_reference_program(ctx, &c->program, NULL);
+	 _mesa_free(c);
+      }
+      cache->items[i] = NULL;
+   }
+
+
+   cache->n_items = 0;
+}
+
+
+
+struct gl_program_cache *
+_mesa_new_program_cache(void)
+{
+   struct gl_program_cache *cache = CALLOC_STRUCT(gl_program_cache);
+   if (cache) {
+      cache->size = 17;
+      cache->items = (struct cache_item **)
+         _mesa_calloc(cache->size * sizeof(struct cache_item));
+      if (!cache->items) {
+         _mesa_free(cache);
+         return NULL;
+      }
+   }
+   return cache;
+}
+
+
+void
+_mesa_delete_program_cache(GLcontext *ctx, struct gl_program_cache *cache)
+{
+   clear_cache(ctx, cache);
+   _mesa_free(cache->items);
+   _mesa_free(cache);
+}
+
+
+struct gl_program *
+_mesa_search_program_cache(const struct gl_program_cache *cache,
+                           const void *key, GLuint keysize)
+{
+   const GLuint hash = hash_key(key, keysize);
+   struct cache_item *c;
+
+   for (c = cache->items[hash % cache->size]; c; c = c->next) {
+      if (c->hash == hash && memcmp(c->key, key, keysize) == 0)
+	 return c->program;
+   }
+
+   return NULL;
+}
+
+
+void
+_mesa_program_cache_insert(GLcontext *ctx,
+                           struct gl_program_cache *cache,
+                           const void *key, GLuint keysize,
+                           struct gl_program *program)
+{
+   const GLuint hash = hash_key(key, keysize);
+   struct cache_item *c = CALLOC_STRUCT(cache_item);
+
+   c->hash = hash;
+
+   c->key = _mesa_malloc(keysize);
+   memcpy(c->key, key, keysize);
+
+   c->program = program;  /* no refcount change */
+
+   if (cache->n_items > cache->size * 1.5) {
+      if (cache->size < 1000)
+	 rehash(cache);
+      else 
+	 clear_cache(ctx, cache);
+   }
+
+   cache->n_items++;
+   c->next = cache->items[hash % cache->size];
+   cache->items[hash % cache->size] = c;
+}